Has there ever been a 10–2 in the Primera Argentina?

Yes, 3 times.

The first time: December 13, 1919, Racing Club beat Estudiantes de Buenos Aires (Racing Club 10–2 Estudiantes de Buenos Aires).

The last time: April 18, 1948, Independiente beat Rosario Central (Independiente 10–2 Rosario Central), 78 years ago.

Home wins: 3. Away wins: 0.

Nearby scores

1. 11–1 3 times
2. 11–2 Never
3. 11–3 1 time
4. 10–1 7 times
5. 10–2 3 times
6. 10–3 1 time
7. 9–1 10 times
8. 9–2 5 times
9. 9–3 2 times

All games

1. April 18, 1948 Independiente 10–2 Rosario Central
2. September 22, 1929 Independiente 10–2 Excursionistas
3. December 13, 1919 Racing Club 10–2 Estudiantes de Buenos Aires